Results 11 to 20 of about 2,037,224 (301)

Laser quality switched (Q-switched): revisão de suas variações e principais aplicabilidades clínicas

Surgical & Cosmetic Dermatology, 2019
Os lasers Q-switched são amplamente utilizados em Dermatologia a fim de tratar uma das queixas mais comuns da rotina dermatológica: as lesões pigmentadas.
Lívia Arroyo Trídico, Carlos Roberto Antonio   +1 more
doaj   +2 more sources

Stability of Q-switched 2 μm lasers [PDF]

, 2020
Q-switched lasers operating at wavelengths around 2 µm have many applications including materials processing and LIDAR. However, the low gain of the quasi-three-level gain media available at 2 µm can lead to problems with pulse-to-pulse fluctuations in ...
Stothard, David J. M., Kemp, Alan J., Bonner, Gerald M., Brooks, James, Bonner, G.M., Kemp, A.J., Stothard, D.J.M., Brooks, J.   +7 more
core   +4 more sources

Graphene actively Q-switched lasers [PDF]

, 2017
Graphene electro-optic modulators (GEOMs) are emerging as a viable alternative to conventional material-based modulators mainly due to their broadband and ultrafast performance.
Zhipei Sun, Qi, M, Qi, Mei, Bai, J, Hasan, T, Jintao Bai, Aksimsek, S, Diao Li, AKŞİMŞEK, HÜSEYİN SİNAN, Sinan Aksimsek, Hui Xue, Ren, Zhaoyu, Nikolai Chekurov, Qing Dai, Kim, W, Chekurov, Nikolai, Mei Qi, Ren, Z, Li, Diao, Xue, H, Harri Lipsanen, Chekurov, N, Bai, Jintao, Tawfique Hasan, ,, Ye, F, Wonjae Kim, Wang, Yadong, Dai, Qing, Changfeng Li, Lipsanen, Harri, Yadong Wang, Zhaoyu Ren, Li, D, Li, C, Lipsanen, H, Juha Riikonen, Fangwei Ye, Li, Changfeng, Dai, Q, Sun, Zhipei, Riikonen, Juha, Wang, Y, Riikonen, J, Hasan, Tawfique, Xue, Hui, Kim, Wonjae, Ye, Fangwei, Sun, Z   +48 more
core   +2 more sources

Actively Q-Switched Tm:YAP Laser Constructed Using an Electro-Optic Periodically Poled Lithium Niobate Bragg Modulator

IEEE Photonics Journal, 2020
We present an EO Q-switched Tm:YAP laser constructed with a periodically poled Mg-doped congruent lithium niobate (PPMgCLN) Bragg modulator. A 2-mm-thick PPMgCLN modulator was adopted, and the internal stress generated in the electric poling process was ...
Shou-Tai Lin, Zhao-Ren Qiu, Cheng-Po Chen   +2 more
doaj   +1 more source

Yb:tungstate waveguide lasers [PDF]

, 2011
Lasers find a wide range of applications in many areas including photo-biology, photo-chemistry, materials processing, imaging and telecommunications. However, the practical use of such sources is often limited by the bulky nature of existing systems.
Bain, Fiona Mair
core   +2 more sources

Kilowatt Peak Power Pulses From a Passively Q-Switched Yb-Doped Fiber Laser With a Smaller-Core Yb-Doped Fiber as a Saturable Absorber

IEEE Photonics Journal, 2014
We demonstrated a passively Q-switched Yb-doped fiber laser in an all-fiber configuration that used a piece of a Yb-doped fiber with a smaller core than the gain fiber as a saturable absorber.
Yi Lu, Xijia Gu
doaj   +1 more source

PASSIVELY Q-SWITCHED YTTERBIUM-DOPED FIBER LASER EMPLOYING SAMARIUM OXIDE AS SATURABLE ABSORBER

International Islamic University Malaysia Engineering Journal, 2021
The rapid developments in transition metal dichalcogenide materials as a saturable absorber (SAs) have been demonstrated to be an effective method for generating Q-switched fiber laser.
Muhamad Khairul Nizam Mohd Rusdi, Afiq Arif Aminuddin Jafry, Nur Farhanah Zulkifli, Farina Saffa Mohamad Samsamnun, Mohamad Badrol Hisyam Mahyuddin, SULAIMAN WADI HARUN, Mohd Shahnan Zainal Abidin, Norazlina Saidin   +7 more
doaj   +1 more source

Investigation on the Stability of WSe₂-PVA Saturable Absorber in an all PM Q-Switched Fiber Laser

IEEE Photonics Journal, 2016
In this paper, we demonstrate an all polarization maintaining (PM) Q-switched erbium-doped fiber laser based on tungsten diselenide-polyvinyl alcohol ($\rm{WSe}_{{2}}\rm{-PVA}$ ) saturable absorber (SA) and investigated the stability of $\rm{WSe}_{{2 ...
Chaoshi Guo, Bohua Chen, Hao Wang, Xiaoyan Zhang, Jun Wang, Kan Wu, Jianping Chen   +6 more
doaj   +1 more source

Highly Stable, Tapered Fiber Filter-Assisted, Multiwavelength Q-Switched Er-Doped Fiber Laser Based on Tm-Ho Fiber as a Saturable Absorber

IEEE Photonics Journal, 2017
A multiwavelength Q-switched erbium-doped fiber ring laser based on a section of Tm-Ho codoped fiber as a saturable absorber, assisted by a tapered optical fiber filter to stabilize the lasing performance is reported.
Gilberto Anzueto-Sanchez, Romeo Emmanuel Nunez-Gomez, Alejandro Martinez-Rios, Jorge Camas-Anzueto, Jesus Castrellon-Uribe, Miguel Basurto-Pensado   +5 more
doaj   +1 more source

Te Film as a Saturable Absorber for the Mid-Infrared Er3+-Doped ZBLAN Fiber Laser

Frontiers in Physics, 2022
We demonstrate a Q-switched Er3+-doped ZBLAN fiber laser at 2.8 µm mid-infrared (mid-IR) region achieved by adopting Te as the saturable absorber mirror (SAM).
Min Zhang, Liu Kang, Zhijian Ma, Peiguang Yan, Shaodong Hou   +4 more
doaj   +1 more source